With the Kärcher WD 3 P V-17/4/20 + Kärcher Vacuum Cleaner Bag for WD 2 Plus/WD 3 (4x), you get a supply of vacuum cleaner bags right away. The construction vacuum has a 17L capacity, which allows you to tackle small jobs. For example, you can keep your house or garden clean and clean up spilled potting soil or water. Thanks to the built-in socket, you can also connect your power tools. For example, a drill or sander. That's useful, because you can vacuum dirt right away while you work. The 4 included fleece filter bags don't tear and catch fine dust. Is the bag full? Easily replace it with a new one.